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Electro-optical system, apparatus, and method for ambulatory monitoring

a technology of optical system and ambulatory monitoring, applied in the field of optical system, apparatus, and methods, can solve the problems of not being able to detect and characterize, not being able to provide an ekg, and being bulky

Active Publication Date: 2016-11-29
THE GENERAL HOSPITAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the Holter monitor allows an EKG trace to be generated in an ambulatory environment, e.g., during usual daily activities, the EKG is only useful to diagnose certain medical conditions.
The Holter monitor, which provides an EKG, is not well suited to detect and to characterize these or some other types of intermittent medical conditions.
Other, more complex systems under exploration and development, use multiple light sources and multiple light receivers to detect such medical conditions as hemorrhage and ischemia.
Existing apparatus, which generates light into and receives light from a patient, is known to be bulky and not suitable for ambulatory measurements.

Method used

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  • Electro-optical system, apparatus, and method for ambulatory monitoring
  • Electro-optical system, apparatus, and method for ambulatory monitoring
  • Electro-optical system, apparatus, and method for ambulatory monitoring

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Embodiment Construction

[0028]Before describing the present invention, some introductory concepts and terminology are explained. As used herein, the term “transmitted light” is used to describe light transmitted from an electro-optical apparatus toward biological tissue of a person. As used herein, the term “intrinsic light” refers to transmitted light propagating within the biological tissue. As is known, intrinsic light can undergo absorption and / or scattering within biological tissue. As used herein, the term “received light” refers to intrinsic light, which exits the biological tissue, and which is received by the electro-optical apparatus.

[0029]As used herein, the term “fluorescent light” is used to describe light at a first wavelength that is emitted by a biological tissue in response to intrinsic light at a second wavelength. Therefore, the intrinsic light acts as a stimulus, which causes the emission of fluorescent light from the biological tissue. Fluorescent light can be generated by natural biol...

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Abstract

An electro-optical system, apparatus, and method allow long-term, ambulatory measurements to be made on a patient using light transmitted into the patient and resulting light received from the patient.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a U.S. National Stage application under 35 U.S.C. §371 and claims the benefit of PCT Patent Application No. PCT / US2006 / 026963, entitled “ELECTRO-OPTICAL SYSTEM, APPARATUS, AND METHOD FOR AMBULATORY MONITORING,” filed on Jul. 12, 2006, which application claims the benefit of U.S. Provisional Application No. 60 / 703,173, filed Jul. 28, 2005, both of which are incorporated by reference herein in their entirety.GOVERNMENT LICENSE RIGHTS[0002]This invention was made with government support under NCC 9-58 awarded by the National Aeronautics and Space Administration and R21-EB002416 awarded by the National Institutes of Health. The government has certain rights in the invention.FIELD OF THE INVENTION[0003]This invention relates generally to electro-optical systems, apparatus, and methods and, more particularly, to an electro-optical system, apparatus, and method that can be used under ambulatory conditions.BACKGROUND OF THE IN...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G01N33/48G01N33/50A61B5/024A61B5/00A61B5/1455G06F19/26G06F19/12G16B5/30G16B45/00
CPCA61B5/02438A61B5/0002A61B5/0059A61B5/1455A61B5/4094A61B5/4509A61B5/7232G06F19/12G06F19/26G16B5/00G16B45/00G16B5/30
Inventor ZHANG, QUANSTRANGMAN, GARY
Owner THE GENERAL HOSPITAL CORP